Not later than the 30th day before the last day of any applicable discovery period, a party may obtain disclosure from another party of the information or material described by Section 301.052 by serving the other party the following request:
"Under Subchapter B, Chapter 301, Family Code, you are requested to disclose, not later than the 30th day after the date of service of this request, the information or material described by Section (state applicable provision of Section 301.052)."
Official text of the Texas Family Code as published by the Texas Legislative Council.